2000 b5 s4 tiptronic 69000

P0741 Torque Converter Clutch Circ Performance or Stuck Off

P1116 O2 Sensor Heater Circ.,Bank1-Sensor1 Open

P1131 Bank2-Sensor1 Internal Rsistance too High

P1476 EVAP Emission Contr.LDP Circ Malfunction/Insufficient Vacuum

P0134 O2 Sensor Circ.,Bank1-Sensor1 No Activity Detected

Where should I start?

 

http://www.bentleypublishers.com/tech/audi

You might have a bad TC, but I would flush the trans fluid & do a few hail Marry's.

need new O2's might as well just replace both primary ones (right after the turbo)

Sounds like you have a leaking evap hose.

 

For those 0xygen sensors I get them out from under the car? Is it possible I have an aftermarket torque converter if there is such a thing for an automatic?

 

Nope, there behind the engine by the firewall. Yes, you can have a aftermarket TC, but it should not throw codes, as it's not electronic, it's mechanical.

 

I agree with all the other answers, the only one that threw me was P1476 EVAP Emission Contr.LDP Circ Malfunction/Insufficient Vacuum and that's because we dont have it in Europe.

the red line is a vacuum pipe for the secondary air system and its probably came loose and thats why there is insoficiant vacuum.





8-
To fuel system diagnostic pump -V144-



q
On USA models

[IMG]local://upfiles/12092/802B8A3F8D194D1B980DBE93F69211BB.jpg[/IMG]

 

Bentley service dvd ordered. 02 sensors Behind the engine....yayyyy sounds like fun.

 

last time I encountered a similar problem it turned out to be the coolant temp sensor but good luck